About the Authors

Jessie A. Morgan

Affiliation Hull York Medical School & NIHR Centre for Reviews and Dissemination,University of York, York, United Kingdom

Sarah Bombell

Affiliation Department of Obstetrics, Goulburn Base Hospital, New South Wales, Australia

William McGuire

william.mcguire@hyms.ac.uk

Affiliation Hull York Medical School & NIHR Centre for Reviews and Dissemination,University of York, York, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WM. Performed the experiments: WM JAM SB. Analyzed the data: WM JAM. Wrote the paper: WM JAM.